Maxon/Auburn 18075 Spark Plug

The Maxon/Auburn 18075 Spark Plug is a heavy-duty industrial burner ignitor specifically engineered for high-performance combustion environments. Featuring a 14mm x 1.25mm thread, this component is essential for initiating a reliable arc in in-duct firing line burners and is a standard spec for Maxon LV Airflo Series burners. Whether you are servicing LV-NP-1, LV-85, or 4-CF/5-CF direct-mounted models, the 18075 ignitor ensures immediate combustion system ignition under varying static pressures and flow velocities.

Built with a robust ceramic insulator and durable electrode materials, this 14mm spark plug provides excellent dielectric strength to prevent flashover in high-heat applications. It serves as a direct cross-reference for the Auburn I-31, Eclipse 17071, and Champion F121510, making it a versatile choice for contractors maintaining multi-brand burner fleets. Relying on genuine Maxon parts like the MX18075 ensures proper electrode gap retention and long-term spark ignitor performance in demanding industrial heating cycles.

• Specifically designed for Maxon LV Airflo Series and in-duct line burners to ensure seamless compatibility.
• Features standard 14mm thread size (A-dimension: 3.66") for easy installation in existing burner plates.
• Directly replaces Auburn I-31, Crown CA505, and Eclipse 17071 during routine industrial burner maintenance.
• Engineered to withstand the extreme thermal cycling and 1.25mm pitch requirements of HVACR combustion systems.

• Which burner models use the 18075 spark plug? It is most commonly found in Maxon LV Airflo burners (LV-NP, LV-HC) and some direct-spark end inlet plates.
• Can I use the Auburn I-31 as a substitute? Yes, the Auburn I-31 is the widely recognized technical equivalent to the Maxon 18075.
• What is the thread pitch for this ignitor? The unit utilizes a 14mm x 1.25mm thread pattern.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.